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Expired European patentEurope

Performing secure and insecure computing operations in a compartmented operating system

EP 1271313 B1 · Applicant: Hewlett Packard Company, a Delaware Corporation

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed June 12, 2002 and granted August 8, 2012. A European patent lasts at most 20 years from filing, so its term ended June 12, 2022.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJune 12, 2002
PublishedJanuary 2, 2003
GrantedAugust 8, 2012
Term endedJune 12, 2022
Application numberEP 02254078
Classification (CPC)G06F9/45537

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJune 12, 2002PublishedJan 2, 2003Patent grantedAug 8, 2012Term endedJune 12, 2022

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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